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          <h1 class="post-title" itemprop="name headline">windows环境利用semophore机制进行线程同步</h1>
        

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        <p><code>semophore</code>是信号量的意思，常用于<code>PV操作</code>，所谓PV操作就是pend(等待，直到有资源可用，并且消耗资源)V就是释放资源。<br><code>semophore和mutex区别</code>，<code>mutex</code>本意为互斥，用于线程独占资源，常用于临界区访问锁住mutex，当线程A对mutex加锁后，其他线程不能反问临界资源，也不能加锁，直到线程A解锁，其他线程才能访问。而semophore则可以在不同的线程之间进行pv操作，semophore可以设置最多有多少个<code>信号量</code>，以及初始的信号量，当调用<code>V操作</code>的时候信号量数量增加一个，调用<code>P操作</code>时候信号量数量减少一个，但是不能超过最多的信号量。信号量是一个非负数。<a id="more"></a><br>打个比方，一辆车只有一把钥匙，mutex就是这把钥匙，谁有这把钥匙才能开车，开完车把钥匙归还或者给下一个等待的人。现在有一辆公交车，最多容纳二十个人，二十就是信号量的最大值，每个人就是一个信号量，当人满的时候其他的人就不能上车，直到有人下车，其他人才能上车。  </p>
<p><code>semophore主要适用于windows环境下的同步</code>  </p>
<h2 id="下面介绍下semophore"><a href="#下面介绍下semophore" class="headerlink" title="下面介绍下semophore"></a>下面介绍下semophore</h2><h3 id="1-创建信号量"><a href="#1-创建信号量" class="headerlink" title="1 创建信号量"></a>1 <code>创建信号量</code></h3><figure class="highlight cpp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br></pre></td><td class="code"><pre><span class="line"><span class="function">HANDLE WINAPI <span class="title">CreateSemaphore</span><span class="params">(              </span></span></span><br><span class="line"><span class="function"><span class="params">  _In_opt_  LPSECURITY_ATTRIBUTES lpSemaphoreAttributes </span></span></span><br><span class="line"><span class="function"><span class="params">  _In_      LONG lInitialCount, </span></span></span><br><span class="line"><span class="function"><span class="params">  _In_      LONG lMaximumCount, </span></span></span><br><span class="line"><span class="function"><span class="params">  _In_opt_  LPCTSTR lpName </span></span></span><br><span class="line"><span class="function"><span class="params">)</span></span>; </span><br><span class="line">第一个参数：安全属性，如果为<span class="literal">NULL</span>则是默认安全属性 </span><br><span class="line">第二个参数：信号量的初始值，要&gt;=<span class="number">0</span>且&lt;=第三个参数 </span><br><span class="line">第三个参数：信号量的最大值 </span><br><span class="line">第四个参数：信号量的名称 </span><br><span class="line">返回值：指向信号量的句柄，如果创建的信号量和已有的信号量重名，那么返回已经存在的信号量句柄</span><br></pre></td></tr></table></figure>
<h3 id="2打开其他进程中的信号量"><a href="#2打开其他进程中的信号量" class="headerlink" title="2打开其他进程中的信号量"></a>2<code>打开其他进程中的信号量</code></h3><figure class="highlight cpp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="function">HANDLE WINAPI <span class="title">OpenSemaphore</span><span class="params">(  </span></span></span><br><span class="line"><span class="function"><span class="params">  _In_  DWORD dwDesiredAccess,  </span></span></span><br><span class="line"><span class="function"><span class="params">  _In_  BOOL bInheritHandle,  </span></span></span><br><span class="line"><span class="function"><span class="params">  _In_  LPCTSTR lpName  </span></span></span><br><span class="line"><span class="function"><span class="params">)</span></span>;</span><br></pre></td></tr></table></figure>
<p><code>dwDesiredAccess</code>：指定想要的访问权限，SEMAPHORE_ALL_ACCESS 请求对事件对象的完全访问，SEMAPHORE_MODIFY_STATE 修改状态权限，使用ReleaseSemaphore函数需要该权限；<br><code>bInheritHandle</code>：是否希望子进程继承信号量对象的句柄，一般设置为false；<br><code>lpName</code>：要打开的信号量对象的名称；  </p>
<h3 id="3等待信号量"><a href="#3等待信号量" class="headerlink" title="3等待信号量"></a>3<code>等待信号量</code></h3><figure class="highlight cpp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"><span class="function">DWORD WINAPI <span class="title">WaitForSingleObject</span><span class="params">(  </span></span></span><br><span class="line"><span class="function"><span class="params">  _In_  HANDLE hHandle,  </span></span></span><br><span class="line"><span class="function"><span class="params">  _In_  DWORD dwMilliseconds  </span></span></span><br><span class="line"><span class="function"><span class="params">)</span></span>;</span><br></pre></td></tr></table></figure>
<p><code>hHandle</code>：指向内核对象的句柄；<br><code>dwMilliseconds</code>：线程最大等待多长时间，直到该对象被触发。经常使用INFINITE，表示阻塞等待。<br><code>WaitForSingleObject</code>为等待资源的函数，等待内核对象被触发的通用函数，在这里用于等待信号量，我们之前说过信号量的资源数是非负整数，当信号量数量大于0，那么该函数会将信号量-1，并且返回，线程继续执行后续操作。如果信号量资源数为0，那么该线程处于等待状态，阻塞等待信号量被激活。  </p>
<h3 id="4-释放信号量"><a href="#4-释放信号量" class="headerlink" title="4 释放信号量"></a>4 <code>释放信号量</code></h3><figure class="highlight cpp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="function">BOOL WINAPI <span class="title">ReleaseSemaphore</span><span class="params">(  </span></span></span><br><span class="line"><span class="function"><span class="params">  _In_       HANDLE hSemaphore,  </span></span></span><br><span class="line"><span class="function"><span class="params">  _In_       LONG lReleaseCount,  </span></span></span><br><span class="line"><span class="function"><span class="params">  _Out_opt_  LPLONG lpPreviousCount  </span></span></span><br><span class="line"><span class="function"><span class="params">)</span></span>;</span><br></pre></td></tr></table></figure>
<p><code>hSemaphore</code>：信号量内核对象的句柄；<br>lReleaseCount：释放自己使用的资源数目，加到信号量的当前资源计数上，通常会传1，当然是根据线程使用的资源数目而定。<br>lpPreviousCount：返回当前资源计数的原始值，应用程序很少会用到这个值，所以一般置为NULL；<br>当一个线程使用完信号量对象控制的有限资源后，应该调用ReleaseSemaphore，释放使用的资源，使信号量对象的当前资源计数得到恢复。</p>
<h3 id="5关闭内核对象的句柄"><a href="#5关闭内核对象的句柄" class="headerlink" title="5关闭内核对象的句柄"></a>5<code>关闭内核对象的句柄</code></h3><figure class="highlight cpp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line"><span class="function">BOOL WINAPI <span class="title">CloseHandle</span><span class="params">(  </span></span></span><br><span class="line"><span class="function"><span class="params">  _In_  HANDLE hObject  </span></span></span><br><span class="line"><span class="function"><span class="params">)</span></span>;</span><br></pre></td></tr></table></figure>
<p><code>hObject</code>：指向内核对象的句柄和其他内核对象一样，无论以什么方式创建内核对象，我们都必须通过调用CloseHandle向系统表明结束使用内核对象。如果传入的句柄有效，系统将获得内核对象数据结构的地址，并将结构中的使用计数减1，如果使用计数0，就会将内核对象销毁，从内存空间中擦除。<br>下面写一个例子，三个线程，分别为如数1,2,3，要求每个线程输出10此，以1,2,3分别输出。<br><figure class="highlight cpp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">//先定义三个信号量句柄：</span></span><br><span class="line"></span><br><span class="line">HANDLE hsem1,hsem2,hsem3;</span><br><span class="line"> </span><br><span class="line"></span><br><span class="line"><span class="comment">//线程回调函数：</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="keyword">unsigned</span> __<span class="function">stdcall <span class="title">threadFunA</span><span class="params">(<span class="keyword">void</span> *)</span></span></span><br><span class="line"><span class="function"></span>&#123;</span><br><span class="line">    <span class="keyword">for</span>(<span class="keyword">int</span> i = <span class="number">0</span>; i &lt; <span class="number">10</span>; i++)&#123;</span><br><span class="line">        WaitForSingleObject(hsem1, INFINITE);<span class="comment">//等待信号量</span></span><br><span class="line">        <span class="built_in">cout</span>&lt;&lt;<span class="string">"first thread function"</span>&lt;&lt;<span class="built_in">endl</span>;</span><br><span class="line">        ReleaseSemaphore(hsem2, <span class="number">1</span>, <span class="literal">NULL</span>);<span class="comment">//释放信号量2</span></span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="comment">//该函数内部调用等待第一个信号量，如果获得资源，则打印日志，并且释放资源2</span></span><br><span class="line"></span><br><span class="line"><span class="comment">//同样的道理，完成第二个，第三个线程回调函数</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="keyword">unsigned</span> __<span class="function">stdcall <span class="title">threadFunB</span><span class="params">(<span class="keyword">void</span> *)</span></span></span><br><span class="line"><span class="function"></span>&#123;</span><br><span class="line">    <span class="keyword">for</span>(<span class="keyword">int</span> i = <span class="number">0</span>; i &lt; <span class="number">10</span>; i++)&#123;</span><br><span class="line">        WaitForSingleObject(hsem2, INFINITE);<span class="comment">//等待信号量</span></span><br><span class="line">        <span class="built_in">cout</span>&lt;&lt;<span class="string">"second thread function"</span>&lt;&lt;<span class="built_in">endl</span>;</span><br><span class="line">        ReleaseSemaphore(hsem3, <span class="number">1</span>, <span class="literal">NULL</span>);<span class="comment">//释放信号量3</span></span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">return</span> <span class="number">2</span>;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">unsigned</span>  __<span class="function">stdcall <span class="title">threadFunC</span><span class="params">(<span class="keyword">void</span> *)</span></span></span><br><span class="line"><span class="function"> </span>&#123;</span><br><span class="line">    <span class="keyword">for</span>(<span class="keyword">int</span> i = <span class="number">0</span>; i &lt; <span class="number">10</span>; i++)&#123;</span><br><span class="line">        WaitForSingleObject(hsem3, INFINITE);<span class="comment">//等待信号量</span></span><br><span class="line">        <span class="built_in">cout</span>&lt;&lt;<span class="string">"third thread function"</span>&lt;&lt;<span class="built_in">endl</span>;</span><br><span class="line">        ReleaseSemaphore(hsem1, <span class="number">1</span>, <span class="literal">NULL</span>);<span class="comment">//释放信号量</span></span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">return</span> <span class="number">3</span>;</span><br><span class="line"> &#125;</span><br><span class="line"></span><br><span class="line"><span class="comment">//接下来在主函数创建三个线程，并且初始化第一个信号量的初始资源数为1，</span></span><br><span class="line"></span><br><span class="line"><span class="comment">//第二个和第三个信号量初始资源数都是0，他们的最大资源数为1.</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment">//创建信号量</span></span><br><span class="line">    hsem1 = CreateSemaphore(<span class="literal">NULL</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="literal">NULL</span>);</span><br><span class="line">    hsem2 = CreateSemaphore(<span class="literal">NULL</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="literal">NULL</span>);</span><br><span class="line">    hsem3 = CreateSemaphore(<span class="literal">NULL</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="literal">NULL</span>);</span><br><span class="line"></span><br><span class="line">    HANDLE hth1, hth2, hth3;</span><br><span class="line"> </span><br><span class="line">    <span class="comment">//创建线程</span></span><br><span class="line">    hth1 = (HANDLE)_beginthreadex(<span class="literal">NULL</span>, <span class="number">0</span>, threadFunA, <span class="literal">NULL</span>, <span class="number">0</span>, <span class="literal">NULL</span>);</span><br><span class="line">    hth2 = (HANDLE)_beginthreadex(<span class="literal">NULL</span>, <span class="number">0</span>, threadFunB, <span class="literal">NULL</span>, <span class="number">0</span>, <span class="literal">NULL</span>);</span><br><span class="line">    hth3 = (HANDLE)_beginthreadex(<span class="literal">NULL</span>, <span class="number">0</span>, threadFunC, <span class="literal">NULL</span>, <span class="number">0</span>, <span class="literal">NULL</span>);</span><br><span class="line"> </span><br><span class="line"></span><br><span class="line"><span class="comment">//当线程调用完回调函数才能让主线程退出，linux系统对应的api为pthread_join()，</span></span><br><span class="line"></span><br><span class="line"><span class="comment">//我们这里windows api为 WaitForSingleObject</span></span><br><span class="line"></span><br><span class="line"><span class="comment">//等待子线程结束</span></span><br><span class="line">    WaitForSingleObject(hth1, INFINITE);</span><br><span class="line">    WaitForSingleObject(hth2, INFINITE);</span><br><span class="line">    WaitForSingleObject(hth3, INFINITE);</span><br><span class="line"> </span><br><span class="line"></span><br><span class="line"> <span class="comment">//最后释放线程的句柄和信号量的句柄</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"> <span class="comment">//一定要记得关闭线程句柄</span></span><br><span class="line">    CloseHandle(hth1);</span><br><span class="line">    CloseHandle(hth2);</span><br><span class="line">    CloseHandle(hth3);</span><br><span class="line">    CloseHandle(hsem1);</span><br><span class="line">    CloseHandle(hsem2);</span><br><span class="line">    CloseHandle(hsem3);</span><br></pre></td></tr></table></figure></p>
<p>打印输出如下：<br><img src="winsemphore/1.png" alt="1"><br>结果显示三个线程是按顺序输出的。所以信号量常用来同步线程。<br>源代码下载地址：<a href="http://download.csdn.net/detail/secondtonone1/9654799" target="_blank" rel="noopener">semophore测试</a></p>

      
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              <div class="post-toc-content"><ol class="nav"><li class="nav-item nav-level-2"><a class="nav-link" href="#下面介绍下semophore"><span class="nav-number">1.</span> <span class="nav-text">下面介绍下semophore</span></a><ol class="nav-child"><li class="nav-item nav-level-3"><a class="nav-link" href="#1-创建信号量"><span class="nav-number">1.1.</span> <span class="nav-text">1 创建信号量</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#2打开其他进程中的信号量"><span class="nav-number">1.2.</span> <span class="nav-text">2打开其他进程中的信号量</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#3等待信号量"><span class="nav-number">1.3.</span> <span class="nav-text">3等待信号量</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#4-释放信号量"><span class="nav-number">1.4.</span> <span class="nav-text">4 释放信号量</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#5关闭内核对象的句柄"><span class="nav-number">1.5.</span> <span class="nav-text">5关闭内核对象的句柄</span></a></li></ol></li></ol></div>
            

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                        return itemLeft.word.length - itemRight.word.length;
                      }
                    });
                  });

                  // merge hits into slices

                  function mergeIntoSlice(text, start, end, index) {
                    var item = index[index.length - 1];
                    var position = item.position;
                    var word = item.word;
                    var hits = [];
                    var searchTextCountInSlice = 0;
                    while (position + word.length <= end && index.length != 0) {
                      if (word === searchText) {
                        searchTextCountInSlice++;
                      }
                      hits.push({position: position, length: word.length});
                      var wordEnd = position + word.length;

                      // move to next position of hit

                      index.pop();
                      while (index.length != 0) {
                        item = index[index.length - 1];
                        position = item.position;
                        word = item.word;
                        if (wordEnd > position) {
                          index.pop();
                        } else {
                          break;
                        }
                      }
                    }
                    searchTextCount += searchTextCountInSlice;
                    return {
                      hits: hits,
                      start: start,
                      end: end,
                      searchTextCount: searchTextCountInSlice
                    };
                  }

                  var slicesOfTitle = [];
                  if (indexOfTitle.length != 0) {
                    slicesOfTitle.push(mergeIntoSlice(title, 0, title.length, indexOfTitle));
                  }

                  var slicesOfContent = [];
                  while (indexOfContent.length != 0) {
                    var item = indexOfContent[indexOfContent.length - 1];
                    var position = item.position;
                    var word = item.word;
                    // cut out 100 characters
                    var start = position - 20;
                    var end = position + 80;
                    if(start < 0){
                      start = 0;
                    }
                    if (end < position + word.length) {
                      end = position + word.length;
                    }
                    if(end > content.length){
                      end = content.length;
                    }
                    slicesOfContent.push(mergeIntoSlice(content, start, end, indexOfContent));
                  }

                  // sort slices in content by search text's count and hits' count

                  slicesOfContent.sort(function (sliceLeft, sliceRight) {
                    if (sliceLeft.searchTextCount !== sliceRight.searchTextCount) {
                      return sliceRight.searchTextCount - sliceLeft.searchTextCount;
                    } else if (sliceLeft.hits.length !== sliceRight.hits.length) {
                      return sliceRight.hits.length - sliceLeft.hits.length;
                    } else {
                      return sliceLeft.start - sliceRight.start;
                    }
                  });

                  // select top N slices in content

                  var upperBound = parseInt('1');
                  if (upperBound >= 0) {
                    slicesOfContent = slicesOfContent.slice(0, upperBound);
                  }

                  // highlight title and content

                  function highlightKeyword(text, slice) {
                    var result = '';
                    var prevEnd = slice.start;
                    slice.hits.forEach(function (hit) {
                      result += text.substring(prevEnd, hit.position);
                      var end = hit.position + hit.length;
                      result += '<b class="search-keyword">' + text.substring(hit.position, end) + '</b>';
                      prevEnd = end;
                    });
                    result += text.substring(prevEnd, slice.end);
                    return result;
                  }

                  var resultItem = '';

                  if (slicesOfTitle.length != 0) {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + highlightKeyword(title, slicesOfTitle[0]) + "</a>";
                  } else {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + title + "</a>";
                  }

                  slicesOfContent.forEach(function (slice) {
                    resultItem += "<a href='" + articleUrl + "'>" +
                      "<p class=\"search-result\">" + highlightKeyword(content, slice) +
                      "...</p>" + "</a>";
                  });

                  resultItem += "</li>";
                  resultItems.push({
                    item: resultItem,
                    searchTextCount: searchTextCount,
                    hitCount: hitCount,
                    id: resultItems.length
                  });
                }
              })
            };
            if (keywords.length === 1 && keywords[0] === "") {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-search fa-5x" /></div>'
            } else if (resultItems.length === 0) {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-frown-o fa-5x" /></div>'
            } else {
              resultItems.sort(function (resultLeft, resultRight) {
                if (resultLeft.searchTextCount !== resultRight.searchTextCount) {
                  return resultRight.searchTextCount - resultLeft.searchTextCount;
                } else if (resultLeft.hitCount !== resultRight.hitCount) {
                  return resultRight.hitCount - resultLeft.hitCount;
                } else {
                  return resultRight.id - resultLeft.id;
                }
              });
              var searchResultList = '<ul class=\"search-result-list\">';
              resultItems.forEach(function (result) {
                searchResultList += result.item;
              })
              searchResultList += "</ul>";
              resultContent.innerHTML = searchResultList;
            }
          }

          if ('auto' === 'auto') {
            input.addEventListener('input', inputEventFunction);
          } else {
            $('.search-icon').click(inputEventFunction);
            input.addEventListener('keypress', function (event) {
              if (event.keyCode === 13) {
                inputEventFunction();
              }
            });
          }

          // remove loading animation
          $(".local-search-pop-overlay").remove();
          $('body').css('overflow', '');

          proceedsearch();
        }
      });
    }

    // handle and trigger popup window;
    $('.popup-trigger').click(function(e) {
      e.stopPropagation();
      if (isfetched === false) {
        searchFunc(path, 'local-search-input', 'local-search-result');
      } else {
        proceedsearch();
      };
    });

    $('.popup-btn-close').click(onPopupClose);
    $('.popup').click(function(e){
      e.stopPropagation();
    });
    $(document).on('keyup', function (event) {
      var shouldDismissSearchPopup = event.which === 27 &&
        $('.search-popup').is(':visible');
      if (shouldDismissSearchPopup) {
        onPopupClose();
      }
    });
  </script>





  

  

  

  
  

  

  

  

</body>
</html>
